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(No Model.)

F. GRINNELL.

AUTOMATIC FIRE EXTINGUISHBR.

No. 269,197. Patented Dec. 19, 1882.

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UNITED STATES Ferca.

PATENTA FREDERICK GRINNELL, OF PROVIDENCE, RHODE ISLAND.

SPECIFICATION forming part of Letters Patent No. 269,197, dated December 19, 1882.

(No model.)

To all 'whom tmay concern Beit known that I, FREDERTCK GRINNELL, ot'the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Automatic Fire-Extinguishers; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to an improve-` ment in devices for distributing water, which water is released automatically by the action of the heat caused by the fire.

The invention consists in securing' to the dischargeoutlet a disk or deiiector by means of solder, extending the said deector beyond the outlet and providing it with projections, and also securing` the said deector so as to give to the same a limited movement when it is released by the action of heat and deliect the discharged water in all directions, as will be more fully set forth hereinafter, and more particularly pointed out in the claims.

Figure l is a side view of my improved auy tomatic lire-extinguisher. Fig. 2 is a sectional unsea-ledand supported below the outlet, so

as to detlectthe water partly upward and partly laterally over a large area.

In automatic lire-extinguishers simplicity of construction and the certainty of prompt action on the breaking outot'a tire are necessary qualities; and the object of this invention'is to so construct an automatic re extinguisher that, on the breaking out of a iire, its action will he prompt; that the same cannot be injured by dust in the room orimpurities in the water,;and will distribute the water on the ceiling of the room and over the tire, so as to extinguish the same promptly.

In the drawings, a is a nippleprovided with a screwthread, by which it can be secured to the tting-piece B ofthe supply-pipe A.

b is a faced surface, forming the outlet, and to which the disk forming the seal is secured by a solder that will withstand the internal pressurein the pipes and will bc affected by the heat caused by the breaking out of a lire sufficient to release the disk, and thus allow the water to be discharged.

c is au overhanging iiange, formed near the nipplea.

d is a bracket placed within the nipple a, in which the rod c, provided at its upper end with the stop f, is free to more on a line with the axis of the nipple.

Secured to the end Aot' the rod e is the disk g, provided at its edge with the projections 7L h, preferably placed flaring, so as to intercept the discharging water and cut it up into spray, forcing a portion of the same upward andthe rest laterally, as is shown in Fig. 4. The disk g is secured to the edge or surface b by means ot' a solder fusible at a low temperature, so as to make a water-tightjoint', and when thisjoint is weakened by heat the pressure ofthe water will break the joint, the disk will be forced outward or downward until the stop f rests on. the bracket d, as is shown in broken lines in Fig. 2, and in. view in Fig. 4L, when the disk becomes a deiiector and will distribute the water in a tine spray over a large area.

It will be seen that this automatic reeX tiuguisher consists simply of an outlet and a seal in the form of a disk, which holds the water until a lire occurs, when the seal also forms the means for distributing the water. It will also be apparent that any amount of dust that may collect on this distributer or any amount of impurities that may be in the water will be freely washed out when the disk g is released. It cannot be clogged or otherwise iuterfered with, but will act promptly as soon as the soldered joint at b is sufficiently weakened to allow the internal pressure to break the seal.

I am aware that a deiiector-plate for distributing the extinguishing-fluid radially, which plate also forms the cover for the outlet, closes the same when secured, and moves away from the outlet' when released to resist the impact of the discharging-fluid and disperse the same, is not broadly new in an automatic lire-extinguisher, such a detlector plate forming part ot' the invention shown and described in Letters Patent No. 248,828, granted to me October 25, 1881.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A distributer for ireextinguishers, consisting, substantially as before set forth, of a valve-disk, g, having projections hh, said disk being adapted to be sented against an outlet or nipple to close the same, or to be held in front of said outlet when unseated.

2. The combination, substantially as before set forth, of the nipple a., the disk g, provided with projections h h, the fusible solder forming 15 n Water-tight joint between said nipple an d disk, and the rod e, adapted to support the disk in front of the outlet when the joint is broken.

3. The combination, with the nipple a and 2o ange c, of the disk g, provided with the projections h h, constructed to be secured by solder to make e Water-tight joint and held in front ofthe outlet when released, as described.

FREDERICK GRINNELL.

Vitnesses:

H. J. MILLER, J. A. MILLER, Jr. 

